Europium(III) oxide (Eu2O3), is a chemical compound of europium and oxygen. It is widely used as a red or blue phosphor in television sets and fluorescent lamps, and as an activator for yttrium-based phosphors. It is also an agent for the manufacture of fluorescent glass. Europium fluorescence is used in the anti-counterfeiting phosphors in Euro banknotes.
3D model (JSmol)
CompTox Dashboard (EPA)
|Molar mass||351.926 g/mol|
|Appearance||white to light-pink solid powder|
|Melting point||2,350 °C (4,260 °F; 2,620 K)|
|Boiling point||4,118 °C (7,444 °F; 4,391 K)|
|Thermal conductivity||2.45 W/(m K)|
|Lethal dose or concentration (LD, LC):|
LD50 (median dose)
|5000 mg/kg (rat, oral)|
|Safety data sheet (SDS)||External MSDS|
|Samarium(III) oxide, Gadolinium(III) oxide|
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
(what is ?)
It may be formed by ignition of europium metal.
It can react with acids to form the corresponding europium(III) salts.